Cryptocurrency is a form of digital or virtual currency that uses advanced cryptography to secure transactions, regulate the creation of new units, and verify the transfer of assets. Unlike traditional currencies controlled by governments or banks, cryptocurrency operates on decentralized networks powered by blockchain technology, ensuring transparency, security, and trust without intermediaries. Popular cryptocurrencies such as Bitcoin, Ethereum, and Litecoin have revolutionized the financial world by offering faster, borderless transactions, lower fees, and opportunities for investment and innovation. Beyond serving as a digital payment method, cryptocurrencies enable smart contracts, decentralized finance (DeFi), and tokenized assets, reshaping industries like banking, real estate, gaming, and e-commerce. As a fast-evolving technology, cryptocurrency represents both financial freedom and a new era of digital economy, attracting traders, investors, and businesses worldwide.